Support Python 3

[justinbass]

Needed since Python 2 is being EOL'd soon.

[Wikinaut]

@justinbass What are the exact steps to get the github code running? It's not mentioned in the README.md.

[Wikinaut]

For your information, these are the locations of the version which I installed with sudo pip3 install colorsafe:

sudo pip3 uninstall colorsafe
Uninstalling colorsafe-0.1.0.dev5:
  /usr/local/bin/colorsafe
  /usr/local/lib/python3.6/dist-packages/colorsafe-0.1.0.dev5.dist-info/DESCRIPTION.rst
  /usr/local/lib/python3.6/dist-packages/colorsafe-0.1.0.dev5.dist-info/INSTALLER
  /usr/local/lib/python3.6/dist-packages/colorsafe-0.1.0.dev5.dist-info/METADATA
  /usr/local/lib/python3.6/dist-packages/colorsafe-0.1.0.dev5.dist-info/RECORD
  /usr/local/lib/python3.6/dist-packages/colorsafe-0.1.0.dev5.dist-info/WHEEL
  /usr/local/lib/python3.6/dist-packages/colorsafe-0.1.0.dev5.dist-info/entry_points.txt
  /usr/local/lib/python3.6/dist-packages/colorsafe-0.1.0.dev5.dist-info/metadata.json
  /usr/local/lib/python3.6/dist-packages/colorsafe-0.1.0.dev5.dist-info/top_level.txt
  /usr/local/lib/python3.6/dist-packages/colorsafe/__init__.py
  /usr/local/lib/python3.6/dist-packages/colorsafe/__pycache__/__init__.cpython-36.pyc
  /usr/local/lib/python3.6/dist-packages/colorsafe/__pycache__/cmd.cpython-36.pyc
  /usr/local/lib/python3.6/dist-packages/colorsafe/__pycache__/colorsafe.cpython-36.pyc
  /usr/local/lib/python3.6/dist-packages/colorsafe/cmd.py
  /usr/local/lib/python3.6/dist-packages/colorsafe/colorsafe.py
  /usr/local/lib/python3.6/dist-packages/colorsafe/csdecoder.py
  /usr/local/lib/python3.6/dist-packages/colorsafe/csencoder.py

[justinbass]

This won't (or shouldn't) work with pip3 or Python3 yet. The exact instructions are, on a new system with pip (Tested on Ubuntu, Mac, Cygwin, Debian 9, Raspbian 7) simply:

pip install colorsafe or pip install --user colorsafe

Then:

colorsafe encode file.txt

[Wikinaut]

$ pip
Traceback (most recent call last):
  File "/usr/local/bin/pip", line 7, in <module>
    from pip  import main
ImportError: cannot import name 'main'

(debian 10 buster)

Even after reinstall (apt purge pip) - install (apt install pip) cycle.

Seems to be this is mega issue pypa/pip#5221 . This is why I ask you for proper instructions how colorsafe could be installed from the github sources.

[justinbass]

This was all mentioned in the prior thread and is out of scope for this issue, but I will elaborate again since I admire your adventurous spirit (in testing this on an unstable OS).

Generally if Colorsafe is not supported via installation with pip out of the box, I will not officially support or test on that OS, which includes Debian 9 and 10. This is working on the most common 99% of OS's. It's also out of scope since, in your case, pip install <any other package> will also show the same error, so the issue is out of my control.

Still I was able to get it working by modifying a pip file (I think /usr/bin/pip) as mentioned in that issue you linked. You can also try sudo python setup.py install, which is a standard python setuptools command.